Self-filling fountain-pen.



No. 836,906. I PATENTED NOV. 27, 1906.

J. N. WHITEHOUSE. v

SELF FILLING FOUNTAIN PEN.

APPLICATION FILED MAR. 30, 1906.

flue/fl er, JIAM M man the UNTTE STATES PATENT FFTGE.

JOHN N. \VHITEHOUSE, OF NEW YORK, N. Y., ASSIGNOR TO LE-W HITEMANUFACTURING COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

SELF-FlLLlNG FOUNTAIN-PEN.

Specification of Letters Patent.

Patented Nov. 27, 1906.

Application filed March 30,1906. Serial No. 308.873.

- rangement of parts, which I will now proceed to describe andhereinafter claim in connection withthe accompanying drawings, formingpart of this specification, wherein Figure 1 illustrates aside elevationof my improved fomitain-pen, partially in section, the sac andcollapsing device being'shown in elevation. Fig. 2 is an enlargedlongitudinal central section of my improved fountain-pen, the being inelevation and the pen-stock onnozzle broken away. Fig. 3 is a viewsimilar to'Fig. 2 and showing the. manner in which the sac is collapsed.Fig. 4 is an enlarged cross-sectional view taken on a line a a in Fig.2and'looking in the direction of the arrow, and Fig. 5 is a fragmentaryview showing the manner of pivotally mounting the links and the tonguewhich supports the same.

Similar numerals of reference indicate correspondin parts in the severalviews. In the awings, the numeral 1 indicates the barrel of my improvedfountain-pen which supports or carries inany desired manner,'such asscreweconnected or frictionseen, Fig. 3.

ally held, the usual pen stock or nozzle 2, which in turn is providedwith a passage 3 for the writing fluid. The passage 3 communicates withthe pen 4'and'feeder-bar 5 in the usual way. I provide the upper end ofthe nozzle 2 with a reduced portion or neck 6, with which the passage 3connects. To the neck 6 a rubber sac 7 is attached.

Various connections may be employed, but I prefer to stretch the lowerend 8 of the sac 7- over the neck 6, thereby holding it in position bythe elasticity of the rubber; As will be the neck is undercut at thebase thereof, thus precluding any tendency of the sac to work ofl.

In order to fill the sac or reservoir 7, I provide an improved meansadapted to collapse or fiattenit. When the sac is thus collapsed orflattened, which by my improvements occurs for the greater part of itslength, the air therein has been forced out, whereby a partial vacuumis'caused, and when the sac is again allowed to expand the pressure ofthe outside atmosphere will force the ink into the sac.

In order to properly exhaust or force the air .from the sac, it isnecessary that the flattening or pressure should be uniform, and toproduce such an effect I provide a shoe 9, which is adapted to partiallysurround the sac 7, as shown in Fig. 4. The shoe 9 is pivotallysupported by a'frame 10, which at its lower end 11 is provided with acylindrical clamp or loop 12, which is adapted to tightly fit a shoulder13, carried by the nozzle As shown, the shoe 9is approximately thelength of the sac 7 and is, as has been stated,

pivotally supported by the frame 10 by means of the links 14.

ported by the frame 10 in eyes 15, which are formed on the ends of thetongues 16, the latterbeing integral with the frame 10, and are formedby stamping in a manner well lmown, as shown in Fig. 5. The shoe 9 isrovidedwith eyes 17 in a similar manner. The links 14 are of equallength, so that when the shoe is operated or pulled-up a parallel motionis produced, whereby the shoe 9 is caused to impinge u on the sac 7equally throughout its lengt For operating the shoe I provide a spindle18, which passes through thecap or head-19 at the upper end of thebarrel. An operating-knob 2.0 is provided for manipulation. The spindle18 is rovided with an eye 21, which supports a mk 22, the other end ofsaid link being connected to the shoe 9 by means of the eye 21.

The cap or head 19 serves to limit the up- Ward movement of the spindle18 to prevent the links 14 from crossing the center.

If desired, the links 14 may be of such length as to prevent theircrossing the center by reason of the total collapse of the sac beforesaid links can attain a horizontal position. i

The links 14 are sup porting the frame by the nozzle 2 as Well as thesac-7 the Whole device may bedrawn out and cleaned by unscrewing knobWhen collapsing the sac, the shoe forces the same against'the oppositewall of the barrel.

Fig. 2 shows the sition.

Having now described my, invention, what I claim, and desire to secureby Letters Patent, is-

l. A. fountain-pen, comprising a barrel, a nozzle carried thereby, acollapsible sac or reservoir attached to thenozzle, and means carried bysaid nozzle adapted to collapse the sac throughout the length thereof.

2. A fountain-pen, comprisinga barrel, a nozzle carried thereby, acollapsible sac communicating with and connected to the nozzle, a framecarried by the nozzle, a shoe 'IIXOV- ably mounted upon said frame andadapted to impinge upon said sac throughout substantially the lengththereof, and means for operating said s ioe.

3. A fom'itain-pen, comprising a barrel, a nozzle carried thereby, acollapsible sac communieatiu g with and connected to the nozzle, a framecarried by the nozzle, a shoe ivotally mounted upon said frame and adfipted to impinge against said sac throughout substantially the length.thereof, and means for operating said shoe.

sac in about its normal pois merelyillustrative,

said links adapted to impinge against said sac, and means adapted-tooperate said-shoe.

' 5. A fountain-pen, comprising a barrel, a nozzle carried thereba'collapsible sac communicating with and connected to the nozzle, aframe carried by said nozzle provided with a plurality of pivotal links,a shoe caried by said links adapted to impinge against said sacthroughout substantially the length thereof, and an o erating-rodcarried by said shoe and extending through the rear end of the barrel.

6. A fountain-pen, comprising a barrel, a nozzle carried thereby, acollapsible sac communicating with and connected to the nozzle, a amecarried by the nozzle and provided with a plurality of pivotal links, ashoe carried by said links adapted to impinge against said sacthroughout substantially the length thereof, means adapted to operatesaid shoe, and means adapted to limit the movement thereof.

7. A device for collapsing the flexible reservoirs of self-fillingfountain-pens, comprising an elongated frame, an elongated shoepivotally connected to the frame and adapted for a movement inparellelism therewith, and means for o erating said shoe.

Signed at New Yor N. Y., this 28th day of March, 1906.

JOHN N. WHITEHOUSE.

